Machine for drilling and reaming



3 Sheets-Sheet 1.

PatentedJune a, 1890.

W. B. HUGHES. Y MACHINE FOR DRILLING AND RBAMING.

(No Model.)

TN: mums PETER: au., nuovo-mnu., wAsnmm-ou, D, c.

1 3.Sheets-Sheet 2.

(No-Model.)

W. B. HUGHES.V MACHINE FOR DRILLINC-l- AND REAMING.

v 1n: Houma rerun ce., muro-muc., wun'lumu, v. c.

(NQMQdeL) 3 sheets-sheen 3.

* W. B. HUGHES. MACHINE FOR DRILLING AND REAMING.

.526. PatentedJnne s, 1890.)

vIO

UNITE-D STATES PATENT OFFICE.

'VILLIAM BISHOP HUGHES, OF PHILADELPHIA, PENNSYLVANIA.A

MACHINE FOR DRILLING AND REAMING.

SPECIFICATION forming part of Letters Patent No. 429,526, dated June 3, 1890.

Application filed December 27, 1889. Serial No. 335,155. (No model.)

T0 all whom it may concern:

Be it known that I, WILLIAM BISHOP HUGHES, a citizen of the United States, and a resident of the city of Philadelphia, in the State of Pennsylvania, have invented certain new andv useful Improvements in Machines for Drilling and Reaming Metal, of which the following is a full and complete specification.

My invention relates to that class of reaming and drilling machines which are employed generally upon bridge-work,where the holes for rivets are generally punched,and in consequence it' is impossible to get a line of holes in two or more plates to coincide so accurately when punched that a rivet can be inserted through several holes. fore necessary when several pieces of metal having punched holes are put together to ream the holes with a free moving reainer, so as to make the holes in the various sheets of metal coincident. This requires a very free moving machine and one which will allow the reamer when put into a hole t0 adjust itself and find the center of several holes for itself, thus making the hole with the least expenditure of time and power. I have shown in the drawings and will hereinafter describe a machine in which this is possible, made so by the peculiar arrangement of the structure which gives it all the necessary motions to make an easy and quick working-machine and to -apply the reamer or drill by power with all the facility which could be acquired with la hand-tool.

I propose to manipulate my machine by hand, communicating power to it so freely as to enable the operator to move it back and forth, up or down, sidewise, or in a circular direction with one hand and with great ease.

The particular purpose of my machine is to make a rapidly-moving and easily-handled machine, which can be caused to do a wide range of execution upon a piece of stationary work. A bridge-girder or other similar structure may be mounted upon proper supports beneath the machine, and then the machine moved over it to do all work within its reach without moving the work. This has great advantages of economy in speed and laborin the manufacture of bridges.

In the drawings, Figure l represents a side It is there-` elevation of my reamin g and drllin g machine with the bracket partially in section. Fig. 2 is a front elevation of the bracket. Fig. 3 is a front elevation of the drill and reamer head with the end of the crane-arm in section, showing the way in which the drill-head is mounted upon the crane-arm. Fig. ais a sectional side elevation of the drill-head, showing the way in which it is mounted upon the crane-arm, and its internal structure. Fig. 5 is a horizontal section through y y, Fig. 3, of the drill-head. Fig. 6 is a horizontal section through :c Fig. 4, of the drill-head. Fig. 7 is a horizontal section through e e, Fig. 4, of the 'drillhead. Fig. 8 is a sectional view of the several plates of metal in which holes have been punched, but which are not coincident witlfone another, with a reamer in them preparatoryto teaming them, so as to be coincident. Fig. 9 is a sectional view ofthe same plates of metal after the drill has passed through and made the rivet-holes coincident. Fig. l0 is a side elevation ot' another application of my invention to a reaming-machine, which, instead of being secured to a bracket secured to a wall, is mounted upon a movable carriage and provided with means by which it may make a complete revolution, the crane-arm describing a circle instead of a semicircle. It also has means for the elevation of the crane-arm vertically upon the post of the carriage. Fig. 1l is a front elevation of the device by means of which the vertical adjustment of the crane-arm is accomplished. Fig. 12 is a sectional view of the sleeve and means of attachments of the cranearm and the elevating device. Fig. 13 is a rear elevation of the upper end of the sleeve to which the crane-arm is attached and which iits over the.pillar upon the carriage. Fig. la is a part of the front elevation of the carriage, showing the series of small wheels by which it moves up the t-rack.

Referring now to Fig. l, l is a bracket, which may be bolted against a wall. It is provided with holes for bolts. 2 is a sleevebearing cast onto the upper end of this bracket, through which there is a central hole 3 and on the 'exterior of which there is a shoulder or flange 4. The lower end of this flange is provided with a cone-shaped bearing 5.

IOO

6 is a socket-bearing or step-bearing for the lower end of the shaft.

7 is a set-screw,which passes up through the bottom of the socket or step bearing 6, and 8 is a lock-nut upon said set-screw for locking it in any desired position.

9 9 are bolt-holes by which the step-bearin g may be bolted to the bracket 1.

10 is a keyway cut half in the bracket 1 and half in the back of the step-bearing 6, in which a key 11 is inserted. This keyway is planed so as to be in exactly the proper position in relation to the step-bearing, in order that the bearing may be properly located in relation to the bracket.' The bolt-holes 9 9 simply serve to hold the step-bearing against the bracket while the downward pressure of the bearing is maintained upon the key 11, resting in its keyway 10.

12 is a crane-arm, which is secured in the bearing 2 and 6 by means of a shaft, or rather two shafts, 011e projecting upward from the rear end of the crane-arm and the other downward. The lower one 13 forms the foot, which rests in the step-bearing 6. The upper one 14is journaled in the hole of the sleeve-bearing 2. The rear end of the crane-arm between the interior ends of the shafts 13 and 14 is hollow. Through the center of the shaft 14 is a hole, through which passes the shaft 15, on either end of which is secured a lnitercd gear 16 and 17. The mitered gear 17 meshes with the mitered gear 18, which is at right angles to it, and which is keyed to the shaft 19. Said shaft 19 is journaled in the bearings 2O and 2l, which are severally mounted upon opposite sides of a sleeve 22, which surrounds the sleeve-bearing 2 and rests upon the shoulder or iiange 4 thereof. The sleeve 22 is provided with a set-screw 23, by means of which it may be fixed at any desired point. Surrounding the shaft 14, upon the upper surface of the rear end of the cranearm, is a conical socket, which is of the same pitch as the cone-bearing 5, and which forms with said cone 5 a bearing. This cone-bearing is afriction device which will aid the setscrew 7 to fix the crane-arm at any desired radial position. Upon the rear end of the shaft 19 is secured a cone-pulley 24, by which power may be applied to the shaft 19 and to the train of gears connected therewith.

25 is a shaft journaled at the two ends of the crane-arm, one end at 26 and the other end at 27. Upon the end next the bracket of the shaft 25 is secured a miteied gear 2S, which meshes with the lnitered gear 16 and gets motion from it. The shaft 25 is provided with a feather 29, and is the means by which a sleeve 77, sustained in a bearing upon a bracket on upper end of the drillhead casin g is caused to revolve. On one end of this sleeve 77 is secured a beveled gear and on the other end a cone-pulley 76.

The crane-arm 12 consists of two T-rails 30 and 50, which are secured together at both ends, but open in the center, so that the carriage of the drill-head and the drill-head may travel between them.

3l and 31 are steel bearing-rails secured upon the upper inner corner of the cranearm, and upon which run the wheels 33 33 of the carriage carrying the drill-head.

34 is the upwardly-projecting bracket or arm upon which the sleeve 77, just described, is jcurnalcd. 35 is a beveled gear upon one end of said sleeve. 36 is abeveled gear meshing with said beveled gear 35, and which is secured to the upper end of a sleeve 37.

32 is the casing yof the drill-head.

38 3S are two friction-wheels, which are provided for the purpose of holding the drillhead firmly to the track when at work and preventing tilting, while at the same time allowing free motion of the drill-head upon the track. They also serve the purpose of clamping the drill-head upon the crane-arm at any desired point.A There are two pair oi' the wheels 38 38, and one of each pair is journaled in the end of a yoke 39 39, which rest upon the ends of the screws 40 40, each of which is threaded in holes through the center of one of the legs of a U-shaped lever 41. This lever 41 is pivoted at 42 and passed around three sides of the drill-head. The loop of the U-shaped lever is provided with a bearing-screw 44, which passes through a lug 45, cast on the side of the drill-head casing, and 46 is a lock-nut by which the screw 44 may be maintained at any desired elevation. pressure may be exerted upon the wheels 38 3S by simply turning the screw 44 and locking the nut 46.

Referring now to Fig. 4, 47 is the drill-shaft, upon one end of which there is secured a drill-mandrel 50, above which there is a eollar 51.

48 is a sleeve surrounding the shaft and separated from it by bush-bearings 49 49. These bush-bearings are generally of brass or other bearing metal. The upper end of the drill-shaft is provided with a feather 52,which passes through abearing, to which itis splin ed in the lower end of the sleeve 37, which is connected to the gear 36, and by means ol which rotary motion is given to the shaft.

and 54 are two lock-nuts screwed upon the shaft 47 about midway of its length, and when screwed tightly upon one another they form a rigid collar upon said shaft. 55 is a collar surrounding said shaft, although not secured to it, except by a pin which passes through both collar and shaft and projects beyond the collar, the ends 56 56 of which pin are provided with holes 57 57 vertically through them, Fig. 5, these ends 56 56 projecting beyond the walls of the case through slots 8O 80 therein.

59 isa rack vertically secured to the side of the sleeve 49, meshing with the pinion 60,

which is keyed to the shaft 61. To one end It will thus be seen that any desired of the shaft 61 is keyed the hand-wheel 62 and to the opposite end a sleeve 63, which is squared. Upon the squared sleeve 63 is fitted a clutch-ring 64, which is provided with square clutch-notches on the side next the drill-shaft 47.

65 is another sleeve upon the round part of the shaft 61, and is provided on the side next the clutch-ring 64 with indentations and elevations corresponding to those of the clutchring, so that the sleeve 65 and the clutch-ring may be thrown into engagement, and when so engaged the sleeve 65, with its worm-wheel 66, will turn the shaft 61.

Referring to Fig. 6, 67 is a screw or worm secured to the shaft 68. To one end ofsaid shaft is secured the hand-wheel 69 and to the other end the gear 70.

71m is a lock-nut upon the end of shaft 68, by which gear 70 is held in place. The worm 67 meshes with the Worm-wheel 66 and gives motion to it when the shaft 68 is turned by the hand-wheel 69. The gear-wheel 70 meshes with a pinion 74, which is mounted upon a shaft 7 3, hung upon a bracket-bearing 72,

' projecting from the outside of the casing` 32.

On the other end of the shaft 73 is keyed a set of cone-pulleys 75.

It will be observed by reference to Fig. 4 that this set of cone-pulleys is located in a vertical line immediately below the cone-pulleys 76, upon the sleeve 77, and which are turned by the main driving-shaft of the machine 25. It will thus be seen that power may be applied to the cone-pulleys 75 and the feedof the machine accomplished by means of power.

It is very important when doing rapid work, in order to do it effectually, that the drill or reamer may be withdrawn from its Work rapidly. This is done by the following mechanism: The clutch 64 is thrown out of engagement with the worm-wheel 66, and by turning the hand-wheel 62 the pinion 60 may be turned directly, thereby raising the sleeve 48 and pushing up the drill-shaft by means of the collar 55. This would be difficultand laborious were not the weight of the drillshaft counterbalanced. This is done by means of cords'which are secured to the projecting ends 56 56, Fig. 5, of the pin, which passes through the shaft and ring 55, and

l prefer to employ two-one on either side ofv the drill-head, because by this means I can get an equal distribution of weight on both sides of the drill-head. This is an important feature, as the balance and ease of motion of my machine is one of its best features.

Figs. 10, 11, 12, and 13 show an application of my invention which is only slightly diferent from that heretofore described. The invention proper is the same. I have only applied it in a little different way, which is capable of a greater variety of motions. This application consists of mounting the cranearm upon a carriage, through which it may be moved upon a track in a horizontal line or rotated in a complete circle, so as to operate upontwo pieces of work in rapid succession.

Referring to Fig. 10, 83 83 is a track laid upon suitable foundation. e 84 is a rack secured to the inside of one of the tracks.

l 85 is a carriage mounted upon the track 83 and resting upon a series ofv small rollers 87 87, which may be of any suitable number to prevent friction.

86 86 are projecting plates secured to the under side of the carriage on either side and projecting beneath the outer ange of the top of the rail. These plates 86 86 hold the carriage upon the track and prevent its being raised olf by the weight of the crane-arm.

88 isa shaft, which is journaled in the base of the carriage, on one end of which there is a hand-wheel 89 and upon the other a pinion 90, which meshes with the rack 84, and by which the carriage and the whole drilling apparatus may be moved upon the track.

91 is a pillar mounted upon the carriage 85.

92 is a sleeve fitting on the pillar and covering it from one end to the other. The pillar 91 is conical in form and so is the sleeve 92. The sleeve 92 is split down the center on one side.

93 93 are projecting lugs on either sideof ythe slit, and 94 94 are bolts passed through the holes in the lugs v93 93 and employed to tighten the sleeve upon the pillar, so as to create any desired amount of friction between it and the pillar.

95 95 arelaterally-p roj ecting vertical flanges extending from the surface of the sleeve 92, and which have upon their ends laterallyprojecting gibs or flanges 96, which serve as guides for the rear end of the crane-arm.

97 is the bracket of the crane-arm. It is in this iigure marked 97, although it occupies the same relative position and serves the same purposes as the plate 1 in Fig. l. Upon the interior of the plate 97 there is a channel-way 98 planed out, into which lits the laterallyprojecting gibs or guides 96 96. Upon the rear side of the plate 97 are bolted two plates 99 99, which project inwardly over the laterally-extending anges 96, and form a bindingplate by which the bracket 97 is securedl to the guides 9696.

100 is a block or nut secured to the inside IOO IIO of the bracket 97, and through which passes l the screw 101. AThis screw 101 is secured at Vgear 120, secured to a shaft 123.

both ends between the guides 9G 96 to crossframes provided for the purpose. The upper end is secured to 103 and the lower one to 102, as shown in Fig. 11.

104e is a beveled gear secured to the lower end of the screw 101.

105 is a similar beveled gear meshing with gear 10a and secured to a shaft 100 at right angles to the screw.

107 is a crank connected to the shaft 106 and by which the mitered gears 101 and 105 and the screw are turned.

108 108 are the sheaves over which the cords pass, by which the crane-arm is counterbalanced.

109 is the cord, and 110 .are the counterbalance-weights. They are in this case, entirely outside of any casing and not, as in the device shown in former figures, in a pocket.

111 is the shaft by which the beveled gear marked 10 in Fig. 1 is turned. This shaft, instead of being short and having a beveled gear at the upper end, is a long shaft provided with a feather 112. It passes through a sleeve and gear 114, which are journaled in a bracket 113, secured to the upper end of the sleeve 92. The gear 111 meshes with a gear 115, which is mounted upon a stud upon the upper surface of the bracket 113.

11()l is another gear, which meshes with 115, and is secured to the bottom of a sleeve 117, to the top of which is secured the beveled gear 118, which meshes with another beveled The sleeve 117 is mounted upon a pin-shaft 119, which is inserted in the top of the pillar 91.

121 is a sleeve surrounding the sleeve 117, and to which are secured the upwardly-extending arms 122 122, on the upper ends of which are bearings for the shaft 123, which is journaled in them, and which is provided on one side of said bearings with the beveled gear 120 and on the other side with the conepulley .124.

This device will allow the sleeve 121, carrying the driving mechanism, to rotate upon the sleeve 117 and be placed parallel to a driven counter-shaft, wherever such may be.

lVhat l desire to secure byLetters Patent, and what I claim as new is- 1. The combination of a crane-arm suitably mounted upondevices for sustaining the same, said crane-arm consisting of two parallel tracks, a driving-shaft suitably j ournaled parallel with said track, a carriage mounted and moving upon said track, and a drillhead borne by said carriage, consisting of a drill-shaft geared to the driving-shaft by geariu g which will slide upon it, the whole drillhead being centrally located between the tracks, substantially as described.

2. The combination of a crane-arm suitabl y mounted upon devices for sustaining the same, said crane-arm consisting of two parallel tracks, a drivin g-shaft suitably journaled parallel with said track, a carriage mounted and moving upon said track, and a drillhead borne by said carriage, consisting of a drill-shaft geared to the driving-shaft by gearing which will slide upon it, and a set of retaining-Wheels for the carriage, yjournaled in a lever secured to the drill-head and bearing upon the under side of the track, and clamping devices for clamping the retaining-wheels upon the track, the drill-head being centrally located between the tracks, substantially as described.

3. The combination of acrane-arm suitably mounted upon devices for sustaining the same, said crane-arm consisting of two parallel tracks, a drivin g-shaft suitably j ournaled parallel to said tracks, a carriage mounted and movable upon said tracks, and a drillhead borne by said carriage, consisting of a drill-shaft geared to the driving-shaft by gearing which will slide upon it, and a set of retaining-wheels journaled in a lever secured to the drill-head and bearing upon the under side of the track, and a drill-shaft geared to the driving-shaft by gearing which will slide upon it, the whole drill-head being centrally located between the tracks of the crane-arm, substantially as described.

f1. The combination oi' a crane-arm suitably mounted upon devices for sustaining the same, said crane-arm consisting of two parallel tracks, a driving-shaft suitably j ournaled parallel to said tracks, a carriage mounted and moving upon said tracks, and a drillhead borne by said carriage, consisting ol' a drill-shaft geared to the drivin g-shaft by gearing which will slide upon it, and being splined to the gear to permit vertical motion, the whole drill-head being centrally located between the tracks, and counter-balance deviceswfor counterbalancing the weight of the drill, substantially as described.

5. The combination of a crane-arm suitably journaled to a wall-bracket, said crane-arm consisting of two tracks upon which is mounted a drill-head, said drill-head being secured to a carriage which runs upon said track and being located between the tracks, and a drivin g-shaft j ournaled upon the cranearm and parallel to it, the drill-shaft being at right angles to the driving-shaft and geared to it by gearing which will slide upon the main driving-shaft, and a collar secured upon the drill-shaft about midway of its length and provided with lugs -on either side, to each of which is secured a cord which passes over a pulley on either side of the drill-head, at the other end of which is secured a counterbalance-weight, said driving-shaft being secured to its gearing by a feat-her or other equivalent device in such manner that it may rise and fall with freedom under the influence of the counterbalance-weight, substantially as described.

(i. In a drilling or reaming machine, the combination of a carriage mounted upon a suitable track, upon` which there is a verti- ICO IIO

cal post, with a sleeve fitted to said post and suitable carriage and running upon the c mn'earranged to revolve upon it, a crane-arm searm, and devices for operating phedrill 1n 1o cured to the side of said sleeve by a sliding the drill-head, substantially as described. connection and means forraisin@ and lower-f ing the level of the crane-arm, counterbalance VILLIAM BISHOP' HUGHES' devices for counterbalancing the Weights of lVitnesses: said crane-arm mounted upon the sleeve, and' JOHNSON HUGHES, Jr., an anti-friction drill-head mounted upon a H. R. LUKENS. 

